Penstemon

Penstemon attenuatus

Penstemon barnebyi

Penstemon azureus

Azure penstemon

Penstemon bicolor

Penstemon bracteatus

Penstemon caesius

Penstemon calcareus

Limestone beardtongue

Penstemon californicus

Penstemon calycosus

Longsepal beardtongue

Penstemon ellipticus

Penstemon cyaneus

Blue penstemon

Penstemon comarrhenus

Penstemon confusus

Penstemon cusickii

Penstemon cyanocaulis

Penstemon × crideri

Penstemon cyathophorus

Sagebrush beardtongue

Penstemon deamii

Penstemon deaveri

Penstemon acuminatus

Sharpleaf penstemon